Method of preparing thermal radiation coating material from waste magnesia chrome brick

摘要

The present invention relates to a method for producing a ceramic thermal radiation insulating coating agent having a high thermal radiation rate, to obtain a low-cost chromite compound.;To this end, the present invention is to mechanically pulverize the lead with a waste magnet to prepare a fine powder; Reacting the waste micrographs with an aqueous sulfuric acid solution to prepare a chromate compound having a high Cr ₂ O ₃ content from which free MgO present in the spent micrographs is removed; It provides a method of preparing a heat insulation coating agent solution by mixing and stirring the prepared chromite compound, fumed silica as a binder dispersant, ceramic fiber and water, more economical and technically easy Inexpensive chromite-containing raw materials can be obtained to make insulating coatings.;Ceramic Fiber, Waste Macro Refractory, Heat Radiation, Chrome Ore, Fire Resistant Paint